https://doi.org/10.1140/epja/i2016-16339-y
Regular Article - Experimental Physics
Determination of flux-weighted average cross-sections of natPb(
,xn), 208Pb(
,xn), and 209Bi(
,xn) reactions using bremsstrahlung end-point energies of 50-70 MeV
1
Radiochemistry Division, Bhabha Atomic Research Centre, 400085, Mumbai, India
2
Department of Physics and Center for High Energy Physics, Kyungpook National University, 41566, Daegu, Korea
3
Research Center, Dongnam Institute of Radiological and Medical Science, 46033, Busan, Korea
4
Division of Advanced Nuclear Engineering, Pohang University of Science and Technology, 37673, Pohang, Korea
* e-mail: gnkim@knu.ac.kr
Received:
5
May
2016
Accepted:
21
October
2016
Published online:
22
November
2016
The flux-weighted average cross-sections of the natPb(,xn)198-204Pb reaction for the bremsstrahlung end-point energies of 50-70MeV were determined by activation and off-line
-ray spectrometric technique, using the 100 MeV electron linac at the Pohang Accelerator Laboratory (PAL), Korea. The relative cross-sections of the 208Pb(
,xn)202-204Pb and 209Bi(
,xn)203-206Bi reactions from our earlier work were updated to absolute values and compared with the present data. The photo-neutron cross-sections of natPb, 208Pb, and 209Bi were also calculated, as a function of the photon energy using the TALYS 1.6 code. The flux-weighted average cross-sections were obtained from the theoretical values of the TALYS 1.6 code, based on mono-energetic photons, and compared with the present experimental data. The values were found to be in good agreement with the present data for the 209Bi(
,xn)203-206Bi, 208Pb(
,xn)202-204Pb, and natPb(
,xn)198-202Pb reactions. However, the present data for the natPb(
,xn)203, 204Pb reactions were higher than the flux-weighted values obtained using the TALYS 1.6 code.
© SIF, Springer-Verlag Berlin Heidelberg, 2016